Abstract: The invention concerns lachrymal plugs, and methods for setting said devices. It concerns a lachrymal plug (10) designed to be inserted in the lachrymal canaliculi (5), said plug, optionally provided with an axial duct, comprising on its outer walls flexible elements (11) foldable on said walls to enable the plug to be inserted in the lachrymal duct and adapted to straighten up once the lachrymal plug is set, so as to maintain the latter in position. The invention generally concerns means for controlling the flow of tears running from the surface of the eye towards the nasal cavity.

Abstract: The invention concerns lachrymal plugs, and methods for setting said devices. It concerns a lachrymal plug (10) designed to be inserted in the lachrymal canaliculi (5), said plug, optionally provided with an axial duct, comprising on its outer walls flexible elements (11) foldable on said walls to enable the plug to be inserted in the lachrymal duct and adapted to straighten up once the lachrymal plug is set, so as to maintain the latter in position. The invention generally concerns means for controlling the flow of tears running from the surface of the eye towards the nasal cavity.

Abstract: The invention concerns a meatus plug for lachrymal canal capable of being screwed, consisting of a substantially cylindrical body (1) whose side surface comprises a helical thread similar to that of a screw for placing or removing the meatus plug by screwing or unscrewing with a tool having a polygonal or cruciform blade used as a screwdriver, the plug comprising or not a through conduit for the passage of a predetermined flow of lachrymal fluid. It is designed for controlling the flow of tears running on the surface of the eye towards the nasal cavity through the lachrymal canals or ducts.